I HAVE A D60 FRONT AND REAR BUT I AM NOT FINANCIALLY READY FOR THE REBUILD OF THESE AXLES. MY 79 BRONCO HAS THE USUAL 9'' AND D44,6'' LIFT,35'' GOODYEAR MTR'S AND A 400M BORED .030 OVER WITH A CAM AND EDELBROCK CARB AND INTAKE. I JUST CAN'T HANDLE THE PEG LEG ACTION ANYMORE. IALSO CAN'T JUSTIFY SPENDING THE MONEY ON LOCKERS FOR THE 1/2 GEAR AND THE 1TON GEAR AS WELL. I DRIVE ABOUT 100 MILES A WEEK ON PAVEMENT IF NOT LESS. WILL THE SPOOLS WORK OR WHAT, WHAT ARE THE UPS AND DOWNS OF SPOOLS. ANY RESPONSE WOULD BE GREATLY APPRECIATTED. ALSO IN THE WINTER WOULD IT BE OKAY TO DRIVE ON THE STREET WITH ONLY ONE HUB LOCKED IF I HAD A SPOOL IN THE FRONT.